January 2, 2007 > California holding $10.5M in 'undeliverable' tax refund checks California holding $10.5M in 'undeliverable' tax refund checks SACRAMENTO (AP), Dec 30 _ Looking for a little cash to pay off those holiday bills? Might want to check with the state. California's holding a stack of more than 35,000 tax refund checks it couldn't deliver in 2006 because residents changed addresses between the time they filed their 2005 taxes and the state mailed their checks. The refunds _ totaling more than $10.5 million dollars _ were returned to the state's Franchise Tax Board marked ``undeliverable'' by the U.S. Post Office. While the checks represent a fraction of the nearly 9.7 million refunds California issued this year, they could bring a little holiday cheer to some lucky residents. The average unclaimed check is $300. State tax officials say the best way to ensure you receive your refund in the new year is to authorize the state to electronically deposited your money into your bank account. Taxpayers looking for unclaimed checks should log onto www.ftb.ca.gov., or call the Franchise Tax Board (800) 852-5711 between the hours of 7 a.m. and 6 p.m., Monday through Friday.